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Finding the Fourth Proportional to 11,652.85, 17,479.28 and 2,887.71

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Solution

The fourth proportional to 11,652.85, 17,479.28 and 2,887.71 is: 4,331.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,652.85 : 17,479.28 = 2,887.71 : x
  2. Step 2: Convert to fraction form
    11,652.85/17,479.28 = 2,887.71/x
  3. Step 3: Cross multiply
    11,652.85x = 17,479.28 × 2,887.71
  4. Step 4: Simplify right side
    11,652.85x = 50,475,091.65
  5. Step 5: Solve for x
    x = 50,475,091.65/11,652.85
  6. Step 6: Final answer
    x = 4,331.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.